With all due respect, you completely ignored my question. I'm not asking for solutions - I understand this can be mitigated.
But this system was developed with FUT in mind, where no one plays the same formation on all setups and that's not expected, loads of people have complained about this issue, I think everyone agrees it's too tedious right now - especially when playing shorter online matches - and I see no reason to think this isn't anything but another of the multitude of examples of a feature not working correctly in this game right now.
If this is really an okay system to you, then we'll just have to agree to disagree bc IMO the current team sheet system is a mess and isn't anywhere near what it needs to be considering how important formations/tactics/instructions have become. To each's own though, cheers.